86285029725 has 36 divisors (see below), whose sum is σ = 156076275732. Its totient is φ = 45563040000.

The previous prime is 86285029723. The next prime is 86285029771. The reversal of 86285029725 is 52792058268.

It is a happy number.

86285029725 is a `hidden beast` number, since 8 + 6 + 28 + 502 + 97 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 451265049 + 85833764676 = 21243^2 + 292974^2 .

It is not a de Polignac number, because 86285029725 - 2¹ = 86285029723 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86285029723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1875736 + ... + 1921185.

Almost surely, 2^86285029725 is an apocalyptic number.

It is an amenable number.

86285029725 is a deficient number, since it is larger than the sum of its proper divisors (69791246007).

86285029725 is a wasteful number, since it uses less digits than its factorization.

86285029725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3797038 (or 3797030 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 86285029725 in words is "eighty-six billion, two hundred eighty-five million, twenty-nine thousand, seven hundred twenty-five".